PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/09-16:57:30
G07     335.3          58.8               10.3 +/-    1.01      11.8 +/-    1.01  0.030 / 0.050
G08     99.9           53.1               12.2 +/-    0.66      14.8 +/-    0.66  0.040 / 0.050
G09     189.4          71.6               12.4 +/-    0.53      13.0 +/-    0.53  0.060 / 0.110
G11     145.3          14.2               14.1 +/-    2.34      35.7 +/-    2.34  0.050 / 0.110
G23     154.6          34.6               12.6 +/-    0.92      20.2 +/-    0.92  0.180 / 0.510
G27     52.8           30.3               10.4 +/-    0.65      18.1 +/-    0.65  0.140 / 0.630
G28     239.2          31.5               11.2 +/-    0.95      19.1 +/-    0.95  0.080 / 0.150
G30     304.4          37.4                9.7 +/-    0.98      14.7 +/-    0.98  0.080 / 0.150